Yes, that's it. Keep in mind the bees like to store excess honey above the brood nest. The goal is to get the deeps up above the brood, so can be filled with honey to be removed later. As the bees build throughout the year, Keep rotating filled medium frames down and keep moving the deeps up, adding boxes when needed to give space. I'm suspecting you'll need it to be 4 to 5 mediums tall by fall.
OK, I'm thinking you only have mediums and don't have or want any deep boxes with frames. So now I'm thinking a slightly different way might be easier... Less management and will get the deeps out sooner...
Set up the double medium boxes, with deeps in them and fill spaces with foundation frames or drawn frames or whatever you're using. Let them get this all filled and used...
When it's time to add a box, then remove all the medium frames, and put them in the new medium box. Make sure the queen is in this box, leaving the spaces empty in the two mediums with the deep frames...
Put an excluder over the two bottom mediums with the deep frames in it, and put your new box now with queen over that, and add another medium of frames on top...
Close off the bottom entrance, and make an entrance above the excluder using shims over the excluder, or I just drill a 3/4" hole in middle of front side of the box that is above excluder. After 6 days, check the bottom deeps for queen cells and destroy if any are found... or...
**if you want to now make a split, instead of destroying any queen cells, just remove the top two mediums with queen to a new location. They will build up to a nice hive by years end. The two mediums with deep frames with queen cells, will now have the work force so fill in spaces with medium frames or with deeps if you like, and they'll raise a queen and give you another hive. If you do not want this new split, then just destroy the queen cells and don't make the split, and continue below...
As the brood emerges out of the deep frames on the bottom, they'll abandon the combs and move up to the queen above. The bees will empty the frames from below and move any stores up above to the brood nest or above the nest. After three weeks, any brood will be all emerged and you can remove the bottom two mediums with deep frames from the hive stack.
Ok, I talk too much. Hope you got ideas from everyone's posts. Best of luck